Writing (Matching) Systems of Equations

Which system of equations below could help solve this problem?

• x + y = 5

  4x + 4y = 20

• 4x + 4y = 5

  x + y = 20

• x - y = 5

  4x - 4y = 20

• 4x - 4y = 5

  x - y = 20

• x + y = 2768

  7x + 4y = 449

• x + y = 449

  7x + 4y = 2768

• x + 4y = 449

  7x + y = 2768

• x + 4y = 2768

  7x + y = 449

Which system of equations could be used to solve this problem?

• x + y = 236000

  2800x + 1200y = 20

• x + y =20

  2800x + 1200y = 236000

• x = y + 20

  2800x + 1200y = 236000

• y = x + 20

  2800x + 1200y = 236000

Which system of equations could be used to solve this problem?

• x - y = 20

  3x + 8y = 100

• 3x + 8y = 20

  x + y = 100

• y = 20 - x

  y = (100 + 3x)/8

• x + y = 20

  3x + 8y = 100

Which system of equations would help you solve this problem?

• y = 200 + 0.05x

  y = 75 + 0.10x

• y = 200 + 5x

  y = 75 + 10x

• 0.05x + y = 200

  0.10x + y = 75

• 5x + y = 200

  10x + y =75

Which system of equations models this situation?

• y = 25 - 10x

  y = 40 - 10x

• y = 25 + 10x

  y = 40 + 10x

• y = 25x + 10

  y = 40x + 10

• y = 25x - 10

  y = 40x - 10

Which system of equations could be used to solve this problem?

• 4x + 2y = 270

  3x + 8y = 435

• 2x + 4y = 435

  8x + 3y = 270

• 2x + 4y = 270

  3x + 8y = 435

• 2x + 4y = 435

  3x + 8y = 270

Which system could be used to solve this problem?

Which system of equations models this problem situation?

• 3x + 6y = 408

  6x + 7y = 516

• 6x + 3y = 408

  6x + 7y = 516

• 3x + 6y = 516

  6x + 7y = 408

• 3x + 6y = 516

  7x + 6y = 408

Which system of equations represents this scenario?

• x + y = 3

  y = 360 - x

• 3x + y = 360

  y = 3x

• x + y = 360

  y = 3x

• x + y = 360

  x - y = 3